Improvement in blowers



M Nrrnn .STATES PATENT Ormea.,

EDMUND SUOKOW AND 'EDWARD HABEL, OF OLDHAM, ENGLAND, ASSIGN- OES TOCHARLES SUGKOW, OF BUFFALO, NEW YORK. l

IMPROVEMENT IN BLWERS.

Specication forming part of Letters Patent No. 37,325, dated January 6,1863.

.To all whom, it may concern.'

Be it known that we, EDMUND SUcKow and EDWARD HABEL, of Oldham, in thecounty of Lancaster, England, engineers, assignors to CHARLES SUcKow, ofthe city of Bualo, county of Erie, and State of New York, United States,have invented an Improved Blower for Producing a Strong Blast or Currentof Air; and we do hereby declare that the following is a full and exactdescription of the construction and operation thereof, reference beinghad to the accompanying drawings, making a part of this specification,in which- Figure I is a longitudinal section of our improved blower.Fig. II is a plan of the screw. Fig. III is a longitudinal section ofthe cylinder or case, the screw being removed therefrom. Fig. IVl is aplan of the cylinder or case in which the screw works.

Letters of like name and kind refer to like parts in each of the gures.The nature of our invention relates to the arrangement of an Archimedeanscrew in a cylinder, which is provided with projections or catch-wingsupon the inside, which lessen the friction of the screw when revolvingin air, and increase the force of the current of air and prevent thereturn of the air; second, in surmounting the cylinder with a conicaldisk, forming an exhaust-chamber, through which the air is forced;third, in making the hub of the screw conical and bell-mouthed.

A represents a cylinder, within which the screw revolves. Upon theinside of this cylin- 1 der are projections or catch-wings a', which lieat an acute angle to the screw-shaft-about forty-ve degrees. These wingsare of such length and so placed that they reach down from the upperpart of the cylinder about onehalf its length, so that about one half ofthe length of the blades of the screw will revolve over and close to thecatch-wings while the other half of the blades expandand fill thecylinder belowthe catch-wings. The hub B, to which the screw-blades areattached, is made conical and hollow or bell-mouthed for about-one halfits length, while the other half or the apex of the cone forms a solidconnection to the shaft. The blades G of the screw are placed andsecurely fastened upon the hub and in a contrary direction to thecatch-wings,

so that when the screw is put into the cylinder the blades will revolvecross'wise of the catchwings. There are secondary blades put upon thehub between the blades G, which are shorter than the blades C. These arerepresented at D. That part of the blades which pass over thecatch-wings are cut out in a manner to allow them to pass over thecatch-wings in the closest possible proximity thereto, while the partbelow the wings expands to the full diameter of the cylinder. A conicaldisk, E, surmounts the cylinder, which forms a capacious exhaust-chamberin front of the screw, through which the air or water or other fluid isdischarged. The discharging-spout or conducting spout or hose isconnected in a suitable and convenient manner to the flangeor top ofthis chamber at E2. Cross-bars are `also placed in this chamber, asshown at F,

for supporting the upper end of the screwshaft, a suitablejournal-bearin g being formed at the junction of these arms for thatpurpose. These bars have their surfaces at an angle corresponding to theangle of the catch-wings.

Gr is a standard or support for the lower end of the screw-shaft. Thisprojects from aplate, H, which plate has a permanent connection to theycylinder. A suitable journal-bearing is placed in this standard, asshown at G2. At the lower end of the cylinder, at which the air or uidsenter, there is secured aV plate or ring, I. This ring is for thepurpose of lessening the opening and preventing a backdraft of air orreturn of iiuid. A. suction pipe or hose is connected to this ring whenthe apparatus is used for forcing water or other liquids.

L represents a tube for conveying oil to the upper journal. 'm is apassage way or tube for conveying oil to the lower journal.

A driving-pulley is placed upon the screw-4 Y shaft, as shown at J. l

The bell-mouth of the screw-hub opens into, enlarges, and adds to theeii'ectivene-ss of th exhaust-chamber.

The screw, and. consequently the cylinder in which it works7 may be ofany desired diameter and length, and the machine may be worked withequal effect in a vertical, horizontal, or angular position.

This invention is not only applicable for producing a strong blast orcurrent of air, but is also designed for and applicable to machin- Itforms one of the most effective force'pumps in use.

What We clainl as our invention, and desire to secure by Letters Patent,is-

1. The arrangement and combination of anI Archimedean screw with acylinder having catch-Win gs a upon theinside thereof, for the purposesand substantially as described.

2. Placing and using the blades of an Archimedean screw upon a conicaland bell-mouthed hub, for the purposes and substantially as set forth.

3. rlhe combina-tion of the conical disk E With the cylinder A andArchiinedean screw, for the purposes and substantially as set forth.

ENMUN D SUCKOW. EDWARD HABEL. Witnesses EDWARD J osEPH HUGHES, JOHNBLooDWoRTH, Patent Agents, 20 Cross Street, Manchester.

